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Finding the Fourth Proportional to 224,478.51, 309,786.87 and 122,510.52

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Solution

The fourth proportional to 224,478.51, 309,786.87 and 122,510.52 is: 169,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,478.51 : 309,786.87 = 122,510.52 : x
  2. Step 2: Convert to fraction form
    224,478.51/309,786.87 = 122,510.52/x
  3. Step 3: Cross multiply
    224,478.51x = 309,786.87 × 122,510.52
  4. Step 4: Simplify right side
    224,478.51x = 37,952,150,532.87
  5. Step 5: Solve for x
    x = 37,952,150,532.87/224,478.51
  6. Step 6: Final answer
    x = 169,068.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.